[Thanks to everyone who sent this in]
- Green as Grass (10) – Train the rook (any difficulty)
- It's A Trap! (10) – Story progression in Chapter 2
- Escort Service (10) – Story progression in Chapter 3
- Girl About Town (10) – Story progression in Chapter 4
- That Sinking Feeling (10) – Story progression in Chapter 5
- Freebaird! (10) – Story progression in Chapter 6
- Heartbroken (10) – Story progression in Chapter 7
- Longitude and Attitude (10) – Story progression in Chapter 8
- Tanks For The Memories (10) – Story progression in Chapter 9
- Water Sports (10) – Story progression in Chapter 10
- Saved Maria (10) – Story progression in Chapter 11
- Be Vewwy Vewwy Quiet (10) – Story progression in Chapter 12 (passive)
- We're Hunting Rabbit (10) – Story progression in Chapter 12 (aggressive)
- Wrapped In Beacon (10) – Story progression in Chapter 13
- Have Fun Storming The Castle (10) – Story progression in Chapter 14
- And The Horse You Rode In On (10) – Story progression in Chapter 15
- They Just Keep Coming (10) – Story progression in Chapter 16
- Brumak Rodeo (10) – Story progression in Chapter 17
- Does This Look Infected To You? (10) – Story progression in Chapter 18
- Reservist (25) – Complete all campaign acts on Casual difficulty
- Non-Commissioned Officer (50) – Complete all campaign acts on Normal difficulty
- Commissioned Officer (75) – Complete all campaign acts on Hardcore difficulty
- Commander (150) – Complete all campaign acts on Insane difficulty
- Tourist (5) – Recover 5 Collectibles (any difficulty)
- Pack Rat (15) – Recover 20 Collectibles (any difficulty)
- Completionist (30) – Recover all 43 Collectibles (any difficulty)
- Dom-Curious (10) – Complete one chapter in co-op on any difficulty
- Domination (30) – Complete ten chapters in co-op on any difficulty
- I Can't Quit You, Dom (50) – Complete all acts in co-op on any difficulty
- Crossed Swords (10) – Win a Chainsaw Duel
- Ain't Too Proud To Beg (10) – Crawl to a teammate and be revived
- Pound of Flesh (10) – Use a meat shield to absorb a killing blow
- DIY Turret (10) – Use a cover-mounted Gatling gun to kill three enemies without dismounting
- Shock and Awe (10) – Use the mortar to kill three enemies with a single shot
- Said The Spider To The Fly (10) – Kill an enemy with a planted grenade
- Blowed Up Real Good (10) – Kill three enemies with a single grenade tag
- Shake and Bake (10) – Kill three enemies with the flamethrower without reloading
- Variety is the Spice of Death (30) – Kill an enemy with every weapon in the game
- Multi-Talented Executioner (30) – Execute a downed enemy with every weapon in the game
- Seriously 2.0 (50) – Kill 100,000 enemies, total, across all modes
- Photojournalist (10) – Submit a spectator photo
- It Takes Two (10) – Win Wingman with both team members alive
- The Old Ball and Chain (10) – Capture a Meat Flag in a winning match of Meat Flag
- It's Good To Be The King (10) – Finish a winning round of Assassination as the leader
- You Go Ahead, I'll Be Fine (10) – Collect all the rings value in a winning round of KOTH
- Back To Basic (20) – Complete Multiplayer Training Grounds
- Can Do It All (30) – Win a match of every multiplayer game type
- Around The World (30) – Win one match on each of the 12 MP maps
- Survived To Five (20) – Entire team must survive the first five waves of Horde (any difficulty)
- Survived To Ten (30) – Entire team must survive the first ten waves of Horde (any difficulty)
